Plugin Power Saver: Make PepperPluginInstanceThrottler interface public.
This patch does a few things.
a) Make PepperPluginInstanceThrottler under content/public. We want to add an overlay for throttled Flash instances, and the plugin placeholder seems to be a logical place to do this. We make this interface public so the placeholder knows when it is throttled and how to unthrottle the plugin.
b) Rename PepperPluginInstanceThrottler -> PluginInstanceThrottler. Soon there is no more NPAPI, so shorten the name.
c) Refactor some metrics collection code out of PluginInstanceThrottler and PepperPluginInstanceImpl and into a separate pepper_plugin_instance_metrics file.
BUG=403800
Review URL: https://codereview.chromium.org/849723002
Cr-Commit-Position: refs/heads/master@{#311873}
diff --git a/content/renderer/pepper/pepper_plugin_instance_metrics.cc b/content/renderer/pepper/pepper_plugin_instance_metrics.cc
new file mode 100644
index 0000000..1c8a0e2
--- /dev/null
+++ b/content/renderer/pepper/pepper_plugin_instance_metrics.cc
@@ -0,0 +1,108 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "content/renderer/pepper/pepper_plugin_instance_metrics.h"
+
+#include "base/metrics/histogram.h"
+#include "base/metrics/sparse_histogram.h"
+#include "ppapi/shared_impl/ppapi_preferences.h"
+
+#if defined(OS_WIN)
+#include "base/win/windows_version.h"
+#endif
+
+#define UMA_HISTOGRAM_ASPECT_RATIO(name, width, height) \
+ UMA_HISTOGRAM_SPARSE_SLOWLY( \
+ name, (height) ? ((width)*100) / (height) : kInfiniteRatio);
+
+namespace content {
+
+namespace {
+
+// Histogram tracking prevalence of tiny Flash instances. Units in pixels.
+enum PluginFlashTinyContentSize {
+ TINY_CONTENT_SIZE_1_1 = 0,
+ TINY_CONTENT_SIZE_5_5 = 1,
+ TINY_CONTENT_SIZE_10_10 = 2,
+ TINY_CONTENT_SIZE_LARGE = 3,
+ TINY_CONTENT_SIZE_NUM_ITEMS
+};
+
+const int kInfiniteRatio = 99999;
+
+const char kFlashClickSizeAspectRatioHistogram[] =
+ "Plugin.Flash.ClickSize.AspectRatio";
+const char kFlashClickSizeHeightHistogram[] = "Plugin.Flash.ClickSize.Height";
+const char kFlashClickSizeWidthHistogram[] = "Plugin.Flash.ClickSize.Width";
+const char kFlashTinyContentSizeHistogram[] = "Plugin.Flash.TinyContentSize";
+
+} // namespace
+
+void RecordFlashSizeMetric(int width, int height) {
+ PluginFlashTinyContentSize size = TINY_CONTENT_SIZE_LARGE;
+
+ if (width <= 1 && height <= 1)
+ size = TINY_CONTENT_SIZE_1_1;
+ else if (width <= 5 && height <= 5)
+ size = TINY_CONTENT_SIZE_5_5;
+ else if (width <= 10 && height <= 10)
+ size = TINY_CONTENT_SIZE_10_10;
+
+ UMA_HISTOGRAM_ENUMERATION(kFlashTinyContentSizeHistogram, size,
+ TINY_CONTENT_SIZE_NUM_ITEMS);
+}
+
+void RecordFlashClickSizeMetric(int width, int height) {
+ base::HistogramBase* width_histogram = base::LinearHistogram::FactoryGet(
+ kFlashClickSizeWidthHistogram,
+ 0, // minimum width
+ 500, // maximum width
+ 100, // number of buckets.
+ base::HistogramBase::kUmaTargetedHistogramFlag);
+ width_histogram->Add(width);
+
+ base::HistogramBase* height_histogram = base::LinearHistogram::FactoryGet(
+ kFlashClickSizeHeightHistogram,
+ 0, // minimum height
+ 400, // maximum height
+ 100, // number of buckets.
+ base::HistogramBase::kUmaTargetedHistogramFlag);
+ height_histogram->Add(height);
+
+ UMA_HISTOGRAM_ASPECT_RATIO(kFlashClickSizeAspectRatioHistogram, width,
+ height);
+}
+
+void SetGPUHistogram(const ppapi::Preferences& prefs,
+ const std::vector<std::string>& arg_names,
+ const std::vector<std::string>& arg_values) {
+// Calculate a histogram to let us determine how likely people are to try to
+// run Stage3D content on machines that have it blacklisted.
+#if defined(OS_WIN)
+ bool needs_gpu = false;
+ bool is_xp = base::win::GetVersion() <= base::win::VERSION_XP;
+
+ for (size_t i = 0; i < arg_names.size(); i++) {
+ if (arg_names[i] == "wmode") {
+ // In theory content other than Flash could have a "wmode" argument,
+ // but that's pretty unlikely.
+ if (arg_values[i] == "direct" || arg_values[i] == "gpu")
+ needs_gpu = true;
+ break;
+ }
+ }
+ // 0 : No 3D content and GPU is blacklisted
+ // 1 : No 3D content and GPU is not blacklisted
+ // 2 : 3D content but GPU is blacklisted
+ // 3 : 3D content and GPU is not blacklisted
+ // 4 : No 3D content and GPU is blacklisted on XP
+ // 5 : No 3D content and GPU is not blacklisted on XP
+ // 6 : 3D content but GPU is blacklisted on XP
+ // 7 : 3D content and GPU is not blacklisted on XP
+ UMA_HISTOGRAM_ENUMERATION(
+ "Flash.UsesGPU", is_xp * 4 + needs_gpu * 2 + prefs.is_webgl_supported, 8);
+#endif
+}
+
+} // namespace content
